A New System of Mental Arithmetic ...Author, and published, 1837 - 173 σελίδες |
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Σελίδα 15
... difference between the fraction , and the difference will be the fraction required . EXAMPLES . What part of a £ . sterling is 18s . 9d . ? Here £ 1-18s . 9d . , and 1- required . the fraction Answer , What part of a guinea is 13s . 8d ...
... difference between the fraction , and the difference will be the fraction required . EXAMPLES . What part of a £ . sterling is 18s . 9d . ? Here £ 1-18s . 9d . , and 1- required . the fraction Answer , What part of a guinea is 13s . 8d ...
Σελίδα 18
... difference be- tween the two rules by substraction , thus : 30-365 = 7130—2760 = 2190 , showing that , if the product of the pounds in the principal and number of days be 2190 by the latter method , there will be an error of one penny ...
... difference be- tween the two rules by substraction , thus : 30-365 = 7130—2760 = 2190 , showing that , if the product of the pounds in the principal and number of days be 2190 by the latter method , there will be an error of one penny ...
Σελίδα 24
... difference between the number of and should be taken and deducted out of the unit's place of the days . EXAMPLE . In 7 months how many days ? and First . 30 × 7 = 213 ; but the difference between is , and therefore the true answer is of ...
... difference between the number of and should be taken and deducted out of the unit's place of the days . EXAMPLE . In 7 months how many days ? and First . 30 × 7 = 213 ; but the difference between is , and therefore the true answer is of ...
Σελίδα 34
... difference between and is , or to of the 19 . Hence the operation is as follows : - +9 = 13s . 4d . ( or of the above ) 1s . 4d . Answer , 14s , 8d . : - If of a cwt . cost £ 14 4s . , what will 7 cwt . cost ? Answer , £ 118 6s . 8d ...
... difference between and is , or to of the 19 . Hence the operation is as follows : - +9 = 13s . 4d . ( or of the above ) 1s . 4d . Answer , 14s , 8d . : - If of a cwt . cost £ 14 4s . , what will 7 cwt . cost ? Answer , £ 118 6s . 8d ...
Σελίδα 39
... difference of adding of the above answer to itself , thus , 11 + = 1s . Od . 4 , which would be the exact answer ; 13d . 12d . for 14 + 16 ; thus , 1d . + . ; this multiplied 22 264 88 by 3 21 7 method is preferable . 7 7 1s . Od . , as ...
... difference of adding of the above answer to itself , thus , 11 + = 1s . Od . 4 , which would be the exact answer ; 13d . 12d . for 14 + 16 ; thus , 1d . + . ; this multiplied 22 264 88 by 3 21 7 method is preferable . 7 7 1s . Od . , as ...
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12 per cent acres aliquot annexed annum answered mentally barley corns brought to farthings ciphers compound interest consequently cost price cube root deducted denominator difference dividend DIVISIONAL PROCESSES divisor doubling the right drams dwts ell English equal figure and fraction find the product find the value gain per cent gallons given number grains highest number hundreds last right hand left hand figure lowest terms mental calculation minutes multiplicand Multiply the given namely number of digits number of farthings number of figures number of months number of pounds number of shillings numeration table observe the following ounces pounds sterling principal put proceed put to interest quantity quotient rate per cent reader reduce remainder right hand figure selling price shews shillings and pence subtract Suppose tenpences three figures three left hand three right hand tons troy vulgar fraction weeks whole number yard cost yards of cloth
Δημοφιλή αποσπάσματα
Σελίδα 161 - Time, in advance, behind him hides his wings, And seems to creep, decrepit with his age ; Behold him, when past by ; what then is seen, But his broad pinions swifter than the winds ? And all mankind, in contradiction strong, Rueful, aghast ! cry out on his career.
Σελίδα 21 - Divide the numerator of the dividend by the numerator of the divisor.
Σελίδα 135 - If the price be an even number of shillings under 20 — multiply the quantity by half the number, doubling the first figure of the product for shillings, and the rest will be pounds.
Σελίδα 1 - ... and is called the denominator. The number above the line is called the numerator, because by it we enumerate, or express the number of parts taken.
Σελίδα 18 - Hence the BANK RULE. Multiply the principal by the number of days, and divide by 6000 ; the quotient will be the interest at 6 per cent. For any other rate than 6 per cent., compute the interest in the same manner, and add or subtract such part as may be required. For 4 per cent. subtract j ; for 4i per cent. subtract J ; for 5 per cent. subtract J ; for 7 per cent. add...
Σελίδα 153 - How often will the wheel of a coach, that is 17 feet in circumference, turn in 100 miles? Ans.
Σελίδα 31 - Cambric, which cost me 90/ but some Damage having happened to it, I am willing to lose...
Σελίδα 12 - RULE. Reduce the given Quantity to the lowest Name mentioned, for a Numerator ; under which put the Number of those Parts contained in an Unit of the Integer for a Denominator, then reduce the Fraaion to its lowest Terms.
Σελίδα 32 - If § of a yard cost § of a £, what will J of a yard cost? A
Σελίδα 55 - ... the amount, from which subtract the principal and the remainder will be the compound interest.